Reset the pong timer on any activity
Reset the pong timer on any activity

This simplifies the timer logic: It's no longer possible to have to a ping & a pong timer active at the same time.

Also consistent with the js client behaviour

andreaperizzato/libPusher,LoyoChengdu/libPusher,hamchapman/libPusher,andreaperizzato/libPusher,lukeredpath/libPusher,hamchapman/libPusher,alignd/libPusher,lukeredpath/libPusher,LoyoChengdu/libPusher,alignd/libPusher,alignd/libPusher,LoyoChengdu/libPusher,andreaperizzato/libPusher,hamchapman/libPusher,LoyoChengdu/libPusher,lukeredpath/libPusher,lukeredpath/libPusher,hamchapman/libPusher,andreaperizzato/libPusher,alignd/libPusher